Update CHANGELOG.md (#1378)

Author: Marc-Andre-Rivet

CHANGELOG.md

@@ -5,6 +5,7 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 ## [UNRELEASED]
 ### Added
 - [#1355](https://github.com/plotly/dash/pull/1355) Removed redundant log message and consolidated logger initialization. You can now control the log level - for example suppress informational messages from Dash with `app.logger.setLevel(logging.WARNING)`.
+- [#1253](https://github.com/plotly/dash/pull/1253), [#1377](https://github.com/plotly/dash/pull/1377) Added experimental `--jl-prefix` option to `dash-generate-components`, optionally generates Julia version of components and corresponding Julia package
 
 ### Changed
 - [#1180](https://github.com/plotly/dash/pull/1180) and [#1375](https://github.com/plotly/dash/pull/1375) `Input`, `Output`, and `State` in callback definitions don't need to be in lists. You still need to provide `Output` items first, then `Input` items, then `State`, and the list form is still supported. In particular, if you want to return a single output item wrapped in a length-1 list, you should still wrap the `Output` in a list. This can be useful for procedurally-generated callbacks.